Global Patent Index - EP 3505774 B1

EP 3505774 B1 20200909 - WEAR DETECTION METHOD AND ARRANGEMENT WITH WEAR DETECTION SYSTEM

Title (en)

WEAR DETECTION METHOD AND ARRANGEMENT WITH WEAR DETECTION SYSTEM

Title (de)

VERSCHLEISSERKENNUNGSVERFAHREN UND ANORDNUNG MIT VERSCHLEISSERKENNUNGSSYSTEM

Title (fr)

PROCÉDÉ DE DÉTECTION D'USURE ET ENSEMBLE AVEC SYSTÈME DE DÉTECTION D'USURE

Publication

EP 3505774 B1 (EN)

Application

EP 18275191 A

Priority

JP 2017250784 A

Abstract (en)

[origin: EP3505774A1] A wear detection method and system for a linear actuator such as a pneumatic cylinder, a hydraulic cylinder, an electric cylinder or the like. A physical amount detection sensor 9 is mounted on a linear actuator in which a push-pull member connected to a rod 2 pushes and pulls a pressure-receiving object while applying a lateral load in a direction different from the linear movement direction. An external force that is generated between a tube and the mounting member when the pressure-receiving object is pushed and pulled is detected by the physical amount detection sensor 9 and compared with standard external force data, which was detected in a state without abnormalities and stored in a computation/storage/determination processing device 10, to computationally determine whether the linear actuator is in a normal state or an abnormal state.

IPC 8 full level

F15B 19/00 (2006.01); F15B 15/20 (2006.01); F16H 21/40 (2006.01); F16H 25/20 (2006.01); H02K 7/06 (2006.01)

CPC (source: CN EP US)

F15B 15/20 (2013.01 - EP); F15B 19/005 (2013.01 - EP); F16H 57/01 (2013.01 - EP); G01L 5/0033 (2013.01 - US); G01L 5/0038 (2013.01 - US); G01M 3/32 (2013.01 - CN); G01M 13/00 (2013.01 - US); G01N 3/56 (2013.01 - CN); F15B 2211/6303 (2013.01 - EP); F15B 2211/6336 (2013.01 - EP); F15B 2211/864 (2013.01 - EP); F15B 2211/87 (2013.01 - EP); F16H 2057/012 (2013.01 - EP)

Citation (examination)

None

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3505774 A1 20190703; EP 3505774 B1 20200909; CN 109975147 A 20190705; JP 2019116927 A 20190718; US 2019195732 A1 20190627

DOCDB simple family (application)

EP 18275191 A 20181220; CN 201811597652 A 20181226; JP 2017250784 A 20171227; US 201816223192 A 20181218